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exotoxin

Definitions of exotoxin
  1. noun
    a toxin that is secreted by microorganisms into the surrounding medium
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    Antonyms:
    endotoxin
    a toxin that is confined inside the microorganisms and is released only when the microorganisms are broken down or die
    type of:
    toxin
    a poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species
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